3v4l.org

run code in 300+ PHP versions simultaneously
<?php class IterateOver { static function string($str): Generator { for ($i = 0, $len = mb_strlen($str); $i < $len; ++$i) { yield mb_substr($str, $i, 1); } } } foreach (IterateOver::string("meh") as $char) { var_dump($char); } var_dump(IterateOver::string("meh"));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0080.00818.43
8.3.50.0120.00316.65
8.3.40.0110.00418.54
8.3.30.0000.01518.54
8.3.20.0000.00819.15
8.3.10.0040.00423.70
8.3.00.0070.00023.48
8.2.180.0090.00616.63
8.2.170.0070.00722.96
8.2.160.0120.00318.99
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00420.52
8.2.120.0040.00426.35
8.2.110.0070.00420.53
8.2.100.0060.00617.75
8.2.90.0050.00317.63
8.2.80.0040.00417.97
8.2.70.0060.00317.80
8.2.60.0030.00617.93
8.2.50.0030.00618.10
8.2.40.0030.00519.34
8.2.30.0080.00019.24
8.2.20.0000.00718.06
8.2.10.0030.00319.51
8.2.00.0000.00819.48
8.1.280.0110.00325.92
8.1.270.0080.00022.11
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0100.00022.54
8.1.230.0110.00020.78
8.1.220.0040.00418.77
8.1.210.0040.00418.88
8.1.200.0000.00917.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00718.85
8.1.160.0080.00018.83
8.1.150.0050.00319.01
8.1.140.0040.00419.52
8.1.130.0000.00718.89
8.1.120.0000.00817.39
8.1.110.0030.00517.49
8.1.100.0000.00717.51
8.1.90.0000.00817.36
8.1.80.0080.00017.48
8.1.70.0070.00017.52
8.1.60.0090.00017.63
8.1.50.0040.00417.59
8.1.40.0000.00717.59
8.1.30.0100.00017.59
8.1.20.0040.00417.69
8.1.10.0040.00417.53
8.1.00.0000.00717.44
8.0.300.0040.00420.07
8.0.290.0000.00816.75
8.0.280.0070.00018.58
8.0.270.0050.00217.20
8.0.260.0060.00017.24
8.0.250.0030.00316.99
8.0.240.0030.00317.05
8.0.230.0000.00917.04
8.0.220.0040.00416.92
8.0.210.0050.00316.96
8.0.200.0040.00416.89
8.0.190.0000.00816.91
8.0.180.0030.00516.91
8.0.170.0040.00417.00
8.0.160.0000.00816.93
8.0.150.0030.00516.83
8.0.140.0030.00316.93
8.0.130.0030.00313.34
8.0.120.0040.00416.82
8.0.110.0040.00416.90
8.0.100.0070.00016.83
8.0.90.0050.00317.08
8.0.80.0060.01016.98
8.0.70.0070.00016.80
8.0.60.0040.00416.88
8.0.50.0050.00216.85
8.0.30.0110.00817.05
8.0.20.0060.01217.40
8.0.10.0000.00717.02
8.0.00.0110.00716.81
7.4.330.0000.00515.55
7.4.320.0050.00216.46
7.4.300.0030.00316.51
7.4.290.0040.00416.52
7.4.280.0080.00016.51
7.4.270.0070.00016.52
7.4.260.0040.00416.51
7.4.250.0030.00316.38
7.4.240.0000.00716.46
7.4.230.0070.00016.70
7.4.220.0040.00416.64
7.4.210.0090.00716.56
7.4.200.0030.00316.43
7.4.160.0060.01416.50
7.4.140.0140.00617.86
7.4.130.0130.00516.58
7.4.120.0100.00816.52
7.4.110.0110.00616.49
7.4.100.0180.00616.43
7.4.90.0090.01216.51
7.4.80.0120.00619.39
7.4.70.0060.01016.59
7.4.60.0130.00616.50
7.4.50.0110.00016.55
7.4.40.0140.01016.42
7.4.00.0060.00614.94
7.3.330.0060.00013.29
7.3.320.0000.00713.34
7.3.310.0070.00016.41
7.3.300.0050.00216.18
7.3.290.0000.00716.36
7.3.280.0120.00916.28
7.3.260.0080.00916.40
7.3.240.0110.00716.38
7.3.230.0030.01316.44
7.3.210.0080.01016.35
7.3.200.0040.01216.59
7.3.190.0100.01016.58
7.3.180.0120.00316.54
7.3.170.0070.01016.35
7.3.160.0140.00716.36
7.2.330.0110.00716.71
7.2.320.0180.00616.80
7.2.310.0090.00916.84
7.2.300.0040.01216.71
7.2.290.0110.00816.77
7.2.110.0040.01216.52
7.2.80.0250.00014.95
7.2.70.0210.00415.13
7.2.60.0150.01215.12
7.2.50.0230.00314.82
7.2.40.0230.00615.13
7.2.30.0170.00814.85
7.2.20.0150.00915.12
7.2.10.0170.00814.95
7.2.00.0180.00915.05
7.1.200.0110.00015.84
7.1.190.0180.00614.01
7.1.180.0190.00613.76
7.1.170.0160.01013.94
7.1.160.0200.01013.70
7.1.150.0130.01013.78
7.1.140.0160.00813.79
7.1.130.0100.01313.81
7.1.120.0230.01013.64
7.1.110.0190.00314.01
7.1.100.1560.00613.63
7.1.90.0260.01013.87
7.1.80.0230.00313.75
7.1.70.0270.00913.89
7.1.60.0530.01331.86
7.1.50.0560.00731.81
7.1.40.0540.01231.99
7.1.30.0380.00931.95
7.1.20.0400.00731.57
7.1.10.0160.01013.63
7.1.00.0230.00313.98

preferences:
58.98 ms | 401 KiB | 5 Q